How to expand the storage memory on the Yún

I'm not able to install a new SD-Card (16 GB).

I get an error saying something like "err. swap disk" (can't remember the exact words).
Before starting the sketch I saw in the webinterface "LuCi" that there is a new SD-Card, called "mnt/sd1" 14.? GB (why not 16 GB ?).

During the installingprocess I choosed 11000 MB for the first and 3000 MB for the second partition.

After the errormessage above, I tried to restart the installprocess but I get an error say "no sd disk" (can't remember the exact words).

Has anyone an idea what I do wrong ?
Is my SD-Card broken now ?

Kind regards
Alain